
In Mesa, renting a diesel generator in 2026 typically costs between $150–$350 per day, $600–$1,200 per week, and $1,800–$3,600 per month. These rates vary based on the generator's power capacity and additional features. Leading rental companies in Mesa provide a wide range of options suitable for various industrial needs.
| Vendor | Daily Rate | Weekly Rate | Review Score | Website |
|---|---|---|---|---|
| United Rentals | $198 | $594 | 8 | Visit |
| Sunbelt Rentals | $198 | $594 | 8 | Visit |
| Ahern Rentals | $198 | $594 | 8 | Visit |
| Equipment Rental Pros (Pro Em) | $101 | $254 | 7 | Visit |
| The Bounce Hub (Mesa) | $170 | $630 | 7 | Visit |
Several factors affect the rental costs of diesel generators, including the generator's power output, duration of hire, and any additional services such as delivery and setup.
When renting a diesel generator, be aware of potential hidden fees. These can include delivery and pick-up charges, which may be flat or based on mileage. Fuel surcharges, damage waivers, and cleaning fees for returning equipment in poor condition can also add to the total cost. Understanding these fees upfront can help in budgeting accurately.

The demand for diesel generators in Mesa is expected to grow in 2026, driven by construction projects and emergency power needs. Rental companies are expanding their fleets to include more fuel-efficient and environmentally friendly models.
Ensure compliance with local regulations regarding emissions and noise levels when renting diesel generators. Rental companies often provide guidance to ensure that their equipment meets all necessary standards.
When planning a portable generator hire in Mesa, consider the specific power requirements and duration of your project. It's crucial to assess the necessary accessories, such as cables and transfer switches, to ensure seamless integration with your existing systems. Additionally, plan for efficient delivery and pickup logistics to minimize downtime. Proper staging and access can significantly impact the workflow, so coordinate with your crew to optimize setup and operation. Rental companies in Mesa can assist with these logistics to ensure a smooth rental experience.
Tip: Schedule delivery and pickup during off-peak hours to avoid delays and additional costs.